Install VanirAOSP Android 4.4.3 Kit-Kat On AT&T Galaxy S3 T999

VanirAOSP is said to be found to increase the performance tuning of Android and most features in this ROM is written as the best for many other ROMs, thus making this ROM fast, stable, smooth and not to mention giving the sweetest taste of Android 4.4.3 Kit-Kat. UI and Graphics are improved over previous versions, CM Profiles and settings are ported, notification handling is improved as well as active display. Mods include, Lock-Screen Blur, Quick Cam and Flash Notifications, Immersive desktop, fully configure Immersive mode, Power Reboot Menu and sound, animation control very useful to enhance speed on the Device, Clock and Battery Mod, Active Notifications and much more.

If you are interested in Other ROMs, you can Visit our Custom ROMs section or you can install this ROM on your AT&T Galaxy S3 by following our tutorial below. This is not an official release from Samsung but a Custom ROM, you need to install a Custom Recovery on your device to install this and also your device must be rooted.

Flash-Custom-ROM-Samsung-Galaxy-S3-AT-T

In this Article,  we will show you How To Install VanirAOSP Android 4.4.3 Kit-Kat On AT&T Galaxy S3 T999. But before we begin, make sure:

  1. That you have a Well Charged Battery, 60%-80% is better.
  2. Back-Up all your important ContactsCall Logs & Messages. It is highly recommended in case of any mishap or data loss to back up all your important data.
  3. Back-Up your Mobiles EFS Data. How To Restore and Back-Up EFS Data On Samsung Galaxy Devices
  4. Check your device model, Go To Setting > About and Make sure that it is T999.
  5. Do not try it on any other device.
  6. Enable USB Debugging Mode
  7. Download USB Driver For Samsung Devices: Link
  8. Root Your Device: Link

Disclaimer:

The methods involved in flashing custom ROMs and rooting your phone is highly custom and may result in bricking your device, and has nothing to do with Google or the device manufacturers which is SAMSUNG in our case. In case of any mishap we may not be held responsible. Follow these instructions to the letter to avoid any mishap or bricking. Make sure that whatever you do, you are doing it at your own responsibility.

Downloads Required:

 Android 4.4.3 Kit-Kat VanirAOSP ROM: Link

Google Apps: Link

How To Install It.

  • Connect your device with PC.
  • Copy and Paste the Above zip files to the root of your sdcard.
  • Disconnect the cable.
  • Turn Off your Device
  • Open Recovery mode. How? Press and hold the Volume Up + Home + Power buttons until you see some text on screen.

CWM/PhilZ Touch Recovery Users.

  1. Back-up your ROM using the Recovery.
  2. To Perform a Back-up, Navigate to Back-up and Restore on Next screen, Choose Back-up again.
  3. Go back to Main Screen after the Back-up is complete.
  4. First Choose ‘Wipe Cache’.
  5. Then Navigate to ‘advance’ and choose ‘Devlik Wipe Cache’, so you won’t get in any bootloop.
  6. Then Finally Choose Wipe Data/Factory Reset.
  7. Navigate to ‘Install zip from sd card’ another windows will open in front of you.
  8. Select ‘choose zip from SD card’ from the Options.
  9. Select the VanirAOSP.zip file and confirm the installation on next screen.
  10. Once the Installation is Over, Go back and Flash Google Apps
  11. Once the Installation is Over, Select +++++Go Back+++++
  12. Select Reboot Now to Reboot the System.

TWRP Users.

  1. Tap on Wipe Button and Select Cache, System, Data.
  2. Swipe the Confirmation Slider.
  3. Go back to Main Menu and Tap Install Button.
  4. Locate the VanirAOSP.zip, Google Apps and Swipe the Slider To install it.
  5. Once the Installation is Over, you will promoted to Reboot System Now.
  6. Select Reboot Now to Reboot the System.

Solve Signature Verification Error:

  1. Open Recovery.
  2. Navigate to install zip from Sdcard
  3. Navigate to Toggle Signature Verification and Press Power Button and See if it is disabled or not. Disable it and then Install the Zip without any Error.

That is it! Just wait for almost 5-minutes, you’ll find your AT&T Galaxy S3 T999 running Android 4.4.3 Kit-Kat VanirAOSP ROM, Go to Settings > About to verify.


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